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US 8,045,795 B2Granted
Image processing apparatus, image processing method, computer program, and storage medium
AssigneeCanon Kabushiki Kaisha
InventorKiyoshi Umeda
Life of this patent
Estimating the term…
Abstract
An image processing apparatus includes a calculating unit configured to calculate an evaluation amount of poor color tone for every pixel in an image and an extracting unit configured to extract a candidate pixel having the poor color tone on the basis of the evaluation amount. The evaluation amount is calculated from red and green components of the image.
Claims22
An image processing apparatus comprising:
- a calculating unit configured to calculate an evaluation amount of red eye for every pixel satisfying a predetermined condition in an image;
- an extracting unit configured to extract a candidate pixel having red eye including a pupil on the basis of the evaluation amount;
- and
- one or more processors programmed to control at least one of the calculating unit and extracting unit,
- wherein the evaluation amount is calculated from only red and green components of the pixel in the image and without a blue component of the pixel in the image.
2 more elements
An image processing method comprising the steps of:
- calculating an evaluation amount of red eye for every pixel satisfying a predetermined condition in an image;
- and
- extracting a candidate pixel having red eye including a pupil on the basis of the evaluation amount,
- wherein the evaluation amount is calculated from only red and green components of the pixel in the image and without a blue component of the pixel in the image.
1 more element
An image processing apparatus comprising:
- a calculating unit configured to calculate an evaluation amount of red eye on the basis of a predetermined color component for every pixel satisfying a predetermined condition in an image;
- a pixel extracting unit configured to extract a candidate pixel in the image area having red eye including a pupil on the basis of the evaluation amount;
- an area extracting unit configured to extract a candidate area having a predetermined shape, including the candidate pixel;
- a determining unit configured to determine whether the candidate area is used as a correction area on the basis of a characteristic amount of the eye, calculated from the candidate area;
- and
- one or more processors programmed to control at least one of the calculating unit, the pixel extracting unit, the area extracting unit and the determining unit,
- wherein the evaluation amount is calculated from only red and green components of the pixel in the image and without a blue component of the pixel in the image.
4 more elements
An image processing method comprising the steps of:
- calculating an evaluation amount of red eye on the basis of a predetermined color component for every pixel satisfying a predetermined condition in an image;
- extracting a candidate pixel in the image area having red eye including a pupil on the basis of the evaluation amount;
- extracting a candidate area having a predetermined shape, including the candidate pixel;
- and
- determining whether the candidate area is used as a correction area on the basis of a characteristic amount of the eye, calculated from the candidate area,
- wherein the evaluation amount is calculated from only red and green components of the pixel in the image and without a blue component of the pixel in the image.
3 more elements
Dependencies are inferred from the claim text.